I built the kit many years ago, actually a fun model and fairly accurate, not much in the way of details compared to present. Two problems worth mentioning, easy to correct.
1) Engine pylon to wing fit was quite sloppy, required substantial filling to look good. I used strip stock to line pylons at wing join points, then filed to fit properly. I felt that would be stronger, flexing would likely crack and break up filller.
2) I had problems with horizontal stabilizers fit, they had a pronounced tilt when fit tested. I filled the original holes with plastic stock, drilled new ones for correct dry fit, then installed with liquid cement mixed with dissolved plastic shavings for additional strength.
All considered it was a realistic model and represented the old Buff well, I enjoyed it, the engineering of the kit was overall quite well done.